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DOI: 10.1055/s-0036-1593352
Transcutaneous Carbon Dioxide Monitoring with Reduced-Temperature Probes in Very Low Birth Weight Infants
Publication History
16 June 2016
19 August 2016
Publication Date:
27 September 2016 (online)
![](https://www.thieme-connect.de/media/ajp/201705/lookinside/thumbnails/10-1055-s-0036-1593352_160285-1.jpg)
Abstract
Background Obtaining blood gases in very low birth weight (VLBW) infants is an invasive procedure. Studies using transcutaneous carbon dioxide (tcPCO2) have reported variable skin complications with high-temperature probes. No enough data available on tcPCO2 monitoring using reduced-temperature probes (41°C).
Objective The objective of this study was to assess reliability and safety of tcPCO2 monitoring at reduced-temperature probe in VLBW infants.
Design and Methods A prospective study was conducted on VLBW infants. tcPCO2 was monitored for 12 hours. Default skin probe temperature was adjusted at 41°C. Blood gases were done as clinically indicated. Arterial partial pressure of CO2 (PaCO2) as well as capillary CO2 were compared with simultaneous tcPCO2.
Results A total of 124 data points were identified from 50 patients (gestational age [GA] = 28.1 ± 2.4 weeks and birth weight [BW] = 1,035 ± 291 g). Patients were supported with continuous positive airway pressure (40%), noninvasive positive pressure ventilation (16%), mechanical ventilation (18%), and high-frequency oscillation ventilation (24%). PaCO2 was measured using either capillary (58%) or arterial (42%) samples. Mean CO2 did not differ between tcPCO2 (51.3 ± 16) and PaCO2 (49.1 ± 13.7) mm Hg. tcPCO2 showed positive correlation with partial pressure of CO2 (r = 0.6, p < 0.001). This correlation continued to be significant after controlling for GA, postmenstrual age, type of sample, and pH. No skin complications were reported.
Conclusion tcPCO2 monitoring using a temperature of 41°C is feasible and reliable in VLBW infants.
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